Nowadays, people assume that muscles are the main factor which determine athlete performance

Until up recently, people assumed that muscle are the main factor which determine athlete performances, but it proved that athlete's visual ability have the main role for athlete performance. When athlete performing sports, they must keep track as much as possible while performing physical maneuvers and tracking fast objects. Otherwise, athlete's body position must integrate with eye movement to assist in balance. Other aspect like environment also contributes to athlete visual sharpness like sufficient lightning, non-confusing uniform color combinations.

Athlete's rate of blinking also influenced their vision, when athlete blinking about two and a half seconds every minute and more than that if athlete is anxious. Blinking cause rapid blur that happen when athlete's eyes move in and out of focus on specific objects. For anticipation, more practice will serve the athlete well, in many ways.

hello yonathan, it is a very interesting topic and also i really appreciate with your efforts to do this essay. but i have some notice for you to make your essay more good.

at the second sentence of first paragraph, you write "When athlete performing sports,......." it should be good if you change it with "When athlete performs the sports,.........." and also at the second paragraph at first sentence, you write "..............and more than that if athlete is....." it more good if you replace that words, to make sense of your sentence.

Until up recently,nowaday people assumed that muscle ...... they must keep trackstay on track as much as possible while ...... visual sharpness like sufficient lightning, non-confusing uniform color combinationsa bright uniform.

Until up recently [in recent years], people assumed that muscle are[is] the main factor which determine (...) athlete's visual ability have[has] the main role for athlete performance. When athlete performing [performs] sports, they must keep track ...

... a half seconds every minute and [it can be] more than that if [the] athlete is anxious.